Cummins Onan DFE Specs (Power | Fuel Consumption)

The Cummins Onan DFE generator is listed with standby output of 500 kW, Diesel fuel, 60 Hz operation, 220 V, 480 V output, 60 Hz, and sound level of 76 dBA @ 23 ft (7 m).

Cummins Onan Generator Specifications

Generator • Diesel • 60 Hz

Standby power: 500 kWVoltage options: 220 V, 480 VDry weight: 7,694 lb (3,490 kg)

Key specifications

500 kW Standby power

Diesel Fuel

220 V, 480 V Voltage options

60 Hz Phase

7,694 lb (3,490 kg) Dry weight

76 dBA @ 23 ft (7 m) Sound level

60 Hz Frequency

Useful generator charts

Charts are shown only when this model has enough usable source data.

Power-to-weight

Standby output per 1,000 lb of dry weight versus similar-output Cummins Onan models.

This model

65 kW

Peer average

58 kW

81st percentile

Power output

Low 351 kW High 500 kW

Standby

500 kW

Prime

351 kW

Model spec snapshot

Representative numeric specifications from this generator.

500 kWStandby

7,694.13 lbWeight

76 dBASound

How the Cummins Onan DFE compares

This compares the supplied numeric specification with Cummins Onan generators in the same broad standby-power class where enough comparable data exists.

Standby power

500 kW

25% below avg

15th percentile

Dry weight

7,694 lb

50% below avg

19th percentile

Sound level

76 dBA

10% below avg

17th percentile

Oil capacity

13.21 gal

51% below avg

8th percentile

Standby power500 kW

Low 400 kWAverage 665.2 kWHigh 921.6 kW

About 25% below the similar-output Cummins Onan average. Around the 15th percentile for this field.

Dry weight7,694 lb

Low 4,643 lbAverage 15,485 lbHigh 39,573 lb

About 50% below the similar-output Cummins Onan average. Around the 19th percentile for this field.

Sound level76 dBA

Low 72.6 dBAAverage 84.8 dBAHigh 91.3 dBA

About 10% below the similar-output Cummins Onan average. Around the 17th percentile for this field.

Oil capacity13.21 gal

Low 8.83 galAverage 27 galHigh 54.53 gal

About 51% below the similar-output Cummins Onan average. Around the 8th percentile for this field.

This model Peer average

Generator information

Manufacturer	Cummins Onan
Model	DFE
Generator type	Generator
Fuel	Diesel
Frequency	60 Hz

Electrical output

Standby power	500 kW
Prime power	351 kW
Standby kVA	563.0
Voltage options	220 V, 480 V
Phase	60 Hz

Engine, cooling and controls

Engine model	Cummins/Onan KTA19G2
Engine displacement	1, 153 cu in (18.9 L)
Aspiration / cooling	Turbo Aftercooled
Rated engine speed	1800 rpm
Engine oil capacity	13.2 gal (50 L)
Engine coolant capacity	27.7 gal (105 L)
Oil capacity	13.2 gal (50 L)
Coolant capacity	27.7 gal (105 L)
Maximum ambient	104 °F (40 °C)
Controller	PCL-001, PowerCommand, PowerCommand 2100, PowerCommand 2100 (PCC), PowerCommand 3100 (PCC), PowerCommand 3200
Alternator	Cummins/Onan B302
Emissions	EPA NSPS Stationary Emergency Tier 2

Physical specifications

Dry weight	7, 694 lb (3, 490 kg)
Wet weight	8, 543 lb (3, 875 kg)
Dimensions (L × W × H)	78.7 × 74.8 × 77.6 in (2000 × 1900 × 1971 mm)
Sound level	76 dBA @ 23 ft (7 m)

Battery

Battery group	190
Battery cranking	1400 CCA
Battery voltage	12 V
Battery quantity	2

Fuel system and runtime

Fuel tank	334.4 gal (1, 266 L)
Tank runtime	4.136 hr

Fuel consumption

Standby	93.2 gal/h (24.6 L/h) @ 0%; 9.4 gal/h (36.0 L/h) @ 1%; 16.1 gal/h (61.0 L/h) @ 25%; 22.6 gal/h (86.0 L/h) @ 50%; 30.5 gal/h (115.0 L/h) @ 75%; 10.8 gal/h (41.0 L/h) @ 100%; 17.4 gal/h (66.0 L/h); 23.4 gal/h (89.0 L/h); 30.1 gal/h (114.0 L/h)
Prime	131.9 gal/h (34.8 L/h) @ 0%; 8.8 gal/h (33.0 L/h) @ 1%; 14.9 gal/h (56.0 L/h) @ 25%; 20.8 gal/h (79.0 L/h) @ 50%; 26.9 gal/h (102.0 L/h) @ 75%; 10.2 gal/h (39.0 L/h) @ 100%; 16.2 gal/h (61.0 L/h); 21.9 gal/h (83.0 L/h); 27.7 gal/h (105.0 L/h)

Maintenance and service parts

Engine oil	Interval: 24000 hr; Capacity: 91
Oil filter	Part number: 3375049; Interval: 24000 hr
Fuel filter	Part number: 25-1386; Interval: 100 hr
Air filter	Interval: 3000 hr
Coolant	Interval: 540 hr; Capacity: 90.8

Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Cummins North America generator website.